function subRegister() {

    var username = $("#username").val();
    var password = $("#password").val();
    var repassword = $("#repassword").val();
    var wxname = $("#wxname").val();
    var email = $("#email").val();
    var reg = /^([a-zA-Z0-9]+[_|\_|\.]?)*[a-zA-Z0-9]+@([a-zA-Z0-9]+[_|\_|\.]?)*[a-zA-Z0-9]+\.[a-zA-Z]{2,3}$/;

    if (username == "" || username.length < 5) {
        alert("用户名不得为空且不能少于五位英文加数字");
        return;
    } else if (password == null || password.length < 5) {
        alert("密码不得为空且不能少于五位英文加数字");
        return;
    } else if (password != repassword) {
        alert("两次密码不一致");
        return;
    } else if (wxname == "" || wxname.length > 20) {
        alert("姓名不得为空且不能大于十位中文或英文");
        return;
    } else if (email == "" || !reg.test(email)) {
        alert("邮箱格式不正确")
        return;
    } else {
        $("#registerform").submit();
    }

}